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» The creation of ultracold RbCs molecules in the rovibrational ground state

The creation of ultracold RbCs molecules in the rovibrational ground state

Event Details

Event Dates:

Thursday, July 30, 2015 - 4:00pm

Seminar Location:

JILA X317

Speaker Name(s):

Simon Cornish

Speaker Affiliation(s):

University of Durham

Seminar Type/Subject

Scientific Seminar Type:

JILA Public Seminar

Event Details & Abstract:

Ultracold and quantum degenerate mixtures of two or more atomic species open up many new research avenues, including the formation of ultracold heteronuclear ground-state molecules possessing a permanent electric dipole moment. The anisotropic, long range dipole-dipole interactions between such molecules offer many potential applications, including novel schemes for quantum simulation. I will discuss our recent demonstration of the creation of ultracold RbCs molecules in the rovibrational ground state [P.K.Molony et al., Phys. Rev. Lett. 113, 255301 (2014)]. The molecules are created from a high phase space density mixture of Rb and Cs in a two-step process. First weakly bound RbCs molecules are created using magnetoassociation on an interspecies Feshbach resonance. The molecules are then optically transferred into the rovibrational ground state of the singlet potential by stimulated Raman adiabatic passage (STIRAP). I will present measurements of the electric dipole moment of the molecules and our progress towards realising a dipolar quantum gas.

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